Install-Package Oracle.ManagedDataAccess https://www.nuget.org/packages/Oracle.ManagedDataAccess/
conn.Open(); // your DB logic here
No TNSNAMES.ORA needed if you use host:port/service_name format. Version Compatibility | .NET Version | Recommended DLL version | |--------------|--------------------------| | .NET 4.5 - 4.8 | 19.x or 21.x | | .NET 6/7/8 | 21.x or 23.x | | .NET Standard 2.0 | 21.x+ | Final Recommendation Always use NuGet inside Visual Studio or dotnet add package Oracle.ManagedDataAccess for .NET Core/5+ projects.
After installation, the DLL is located in your project's packages folder or bin\Debug . For developers who need tools, ODP.NET, and the DLL together.
If you need the file for a non-development environment (e.g., a server without build tools), copy it from a developer machine's packages folder after a NuGet restore.